Steer clear of use of mixed agonist/antagonist (eg, pentazocine, nalbuphine, and butorphanol) or partial agonist (eg, buprenorphine) analgesics in individuals that are receiving an entire opioid agonist analgesic; mixed agonist/antagonist and partial agonist analgesics could lower analgesic effect and/or precipitate withdrawal signs or symptoms; wh